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No Model.)

G. W. SLOANE;

FEED WATER HEATER.

Patented May 16, 1882.

IN ENT R M50 W. Mom/ye,

I WITNESSES:

i BY AW ATTORNEYAJ UNITED STATES T ENT OF ICE.

GEORGE W. SLQANE, OF GREEN POINT, NEW YORK.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent No. 258,141, dated May 16, 1882. Application filed March 15, 1882. (No model.) I

To all whom it may concern:

Be it known that 1, GEORGE W. SLOANE, a

. citizen of the United States, residing at Green Point, in the county of Kings and State of New York, have invented new and useful Improvements in Feed-Water Heaters, of which,

the following is a specification.

This invention relates to a feed-water heater which is composed of two drums situated in front of the grate-bars, one of said drums being connected with the water-space of the boiler and the other with the steam-space, and a series of pipes which connect the two drums and form protections for the side walls and for the bridge-wall of the fire-chamber.

In the accompanying drawings, Figure 1 represents a plan or top view of my feed-water heater. Fig. 2 is a longitudinal vertical section in the plane :10 m, Fig. 3. Fig. 3 is a sectional front View.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates a steam-boiler. B is the wall which incloses the boiler, and O is the fire-chamber, the bottom of which is formed by the grate D. In the interior of this fire-chamber, and close in front of the grate, are situated two drums,EF, which are connected together by a tier of pipes, G, running along the side walls of the fire-chamber and in front of the bridge-wall B, so that they form protections for these walls against the heated gases of combustion rising from the fire. For the purpose of supporting the lowest pipe in the tier G the bridge-wall is provided with a shoulder, a, (see Fig. 2,) while those sections of the pipes G which extend along the side walls of the fire-chamber are connected by braces I). The drum E connects by a pipe, I, with the water-space of the boiler, and the feed water enters into this drum through the pipe J. The drumF connects by a pipe, K, with the steam-space of the boiler, and from its bottom part extends the blow-off pipe L.

The feed-water, on being injected into the drum E, passes through the pipes G into the drum F and becomes heated in a high degree before it passes through the pipe I into the boiler, while the steam which is generated in so the drums E F and pipes G passes into the boiler through the pipe K. From this description it will be seen that by my feed-water heater the walls'of the'fire-chamber are protected against theyheated gases of combustion, and that the feed-water, before it enters the boiler, is heated to a temperature nearly equal to that ofthe water inthe boiler, so that it does not cool ofi the boiler, and the steam in the boiler is not condensed .by the introduction of the feed-watery. In fact my feed-water heater increases the elfective heating-surface of the boiler, and consequently its capacity to generate steam.

In the example represented by the drawings I have shown my feed-water heater in connec tion with a tubular boiler; butit will be readily understood that my apparatus can be used with advantage in connection with sectional steamboilers or with steam-generators of almost any known construction.

While Ihave specifically described the drums connected with the boiler, and with tubes or pipes which extend along the sides and across the rear end of the fire-chamber, I do not wish to be understood as broadly claiming such fea-,

tures, as they have heretofore been provided in a with the water-space of the boiler, while the other drum is connected with the steam-space of the boiler. The effect of this combination and arrangement is such that the i'nflowing feed-water is caused to traverse the aforesaid tier of pipes, wherebyit becomes highly heated, and in such condition passes into the waterspace of the boiler, while the steam generated in the drums and tier of pipes is conveyed by the pipe K to the steam-space of the boiler.

What I claim as new, and desire to secure by Letters Patent, is-- V A feed-water heater for boilers, composed of the drum E, having at its lower portion a pipe, J, to connect it with a source of feed-water supply, and at its upper portion with a pipe,

I, connecting said drum with the water-space of the b0i1er,a drum,E,having a pipe, K, connecting it with the boilerabove the water-line thereof, and a tier of pipes connected with the In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses.

drums and extending along the sides and rear GEORGE W. SLOANE. IL. s] 5 of the fire-chamber, said members being com- Witnesses:

bined and arran ged for operation substantially J. VAN SANTVOORD, as shown and described. E. F. KASTENHUBER. 

